EP0622779A3 - Aktiver Lärmdämpfer mit vielfachadaptivem Filter. - Google Patents

Aktiver Lärmdämpfer mit vielfachadaptivem Filter. Download PDF

Info

Publication number
EP0622779A3
EP0622779A3 EP94106495A EP94106495A EP0622779A3 EP 0622779 A3 EP0622779 A3 EP 0622779A3 EP 94106495 A EP94106495 A EP 94106495A EP 94106495 A EP94106495 A EP 94106495A EP 0622779 A3 EP0622779 A3 EP 0622779A3
Authority
EP
European Patent Office
Prior art keywords
adaptive filter
active noise
noise canceller
multiple adaptive
filter active
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94106495A
Other languages
English (en)
French (fr)
Other versions
EP0622779B1 (de
EP0622779A2 (de
Inventor
Paul L Feintuch
Allen K Lo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of EP0622779A2 publication Critical patent/EP0622779A2/de
Publication of EP0622779A3 publication Critical patent/EP0622779A3/de
Application granted granted Critical
Publication of EP0622779B1 publication Critical patent/EP0622779B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17885—General system configurations additionally using a desired external signal, e.g. pass-through audio such as music or speech
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3025—Determination of spectrum characteristics, e.g. FFT
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3042—Parallel processing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3045—Multiple acoustic inputs, single acoustic output
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/50—Miscellaneous
    • G10K2210/503—Diagnostics; Stability; Alarms; Failsafe
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/50—Miscellaneous
    • G10K2210/512—Wide band, e.g. non-recurring signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP94106495A 1993-04-27 1994-04-26 Aktiver Lärmdämpfer mit vielfachadaptivem Filter Expired - Lifetime EP0622779B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53728 1993-04-27
US08/053,728 US5425105A (en) 1993-04-27 1993-04-27 Multiple adaptive filter active noise canceller

Publications (3)

Publication Number Publication Date
EP0622779A2 EP0622779A2 (de) 1994-11-02
EP0622779A3 true EP0622779A3 (de) 1995-09-20
EP0622779B1 EP0622779B1 (de) 2002-06-12

Family

ID=21986164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94106495A Expired - Lifetime EP0622779B1 (de) 1993-04-27 1994-04-26 Aktiver Lärmdämpfer mit vielfachadaptivem Filter

Country Status (6)

Country Link
US (1) US5425105A (de)
EP (1) EP0622779B1 (de)
JP (1) JP2889114B2 (de)
KR (1) KR0164237B1 (de)
CA (1) CA2122108C (de)
DE (1) DE69430775T2 (de)

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103188B1 (en) * 1993-06-23 2006-09-05 Owen Jones Variable gain active noise cancelling system with improved residual noise sensing
JPH0784993A (ja) * 1993-09-17 1995-03-31 Fujitsu Ltd 信号抑圧装置
FR2739214B1 (fr) * 1995-09-27 1997-12-19 Technofirst Procede et dispositif d'attenuation active hybride de vibrations, notamment de vibrations mecaniques, sonores ou analogues
JP2967400B2 (ja) * 1995-12-15 1999-10-25 富士ゼロックス株式会社 画像形成装置の騒音マスキング装置および騒音マスキング方法
US5737433A (en) * 1996-01-16 1998-04-07 Gardner; William A. Sound environment control apparatus
WO1999005998A1 (en) 1997-07-29 1999-02-11 Telex Communications, Inc. Active noise cancellation aircraft headset system
US7567677B1 (en) * 1998-12-18 2009-07-28 Gateway, Inc. Noise reduction scheme for a computer system
US6591234B1 (en) 1999-01-07 2003-07-08 Tellabs Operations, Inc. Method and apparatus for adaptively suppressing noise
US6728380B1 (en) 1999-03-10 2004-04-27 Cummins, Inc. Adaptive noise suppression system and method
FR2834563B1 (fr) * 2002-01-08 2004-04-02 Thales Sa Procede de suppression de signaux radioelectriques pulses et dispositif de mise en oeuvre du procede
US6978010B1 (en) * 2002-03-21 2005-12-20 Bellsouth Intellectual Property Corp. Ambient noise cancellation for voice communication device
GB0208421D0 (en) * 2002-04-12 2002-05-22 Wright Selwyn E Active noise control system for reducing rapidly changing noise in unrestricted space
US20050238179A1 (en) * 2004-04-23 2005-10-27 Wolfgang Erdmann Active noise reduction in the proximity of a passenger seat
DE102005042430A1 (de) * 2005-09-07 2007-03-08 Fachhochschule Ulm Gehörschutz bei gleichzeitiger Sprachverständlichkeit mit Signalprozessor
JP2009092887A (ja) 2007-10-05 2009-04-30 Sharp Corp 定着装置およびそれを備える画像形成装置
US20090136052A1 (en) * 2007-11-27 2009-05-28 David Clark Company Incorporated Active Noise Cancellation Using a Predictive Approach
KR20110082582A (ko) * 2008-10-21 2011-07-19 존슨 컨트롤스 테크놀러지 컴퍼니 노이즈 수정 오버헤드 오디오 시스템
US9020158B2 (en) * 2008-11-20 2015-04-28 Harman International Industries, Incorporated Quiet zone control system
US8135140B2 (en) 2008-11-20 2012-03-13 Harman International Industries, Incorporated System for active noise control with audio signal compensation
US9130747B2 (en) * 2008-12-16 2015-09-08 General Electric Company Software radio frequency canceller
US8718289B2 (en) 2009-01-12 2014-05-06 Harman International Industries, Incorporated System for active noise control with parallel adaptive filter configuration
US8189799B2 (en) 2009-04-09 2012-05-29 Harman International Industries, Incorporated System for active noise control based on audio system output
US8199924B2 (en) 2009-04-17 2012-06-12 Harman International Industries, Incorporated System for active noise control with an infinite impulse response filter
US8077873B2 (en) 2009-05-14 2011-12-13 Harman International Industries, Incorporated System for active noise control with adaptive speaker selection
US8737636B2 (en) 2009-07-10 2014-05-27 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation
US8908877B2 (en) 2010-12-03 2014-12-09 Cirrus Logic, Inc. Ear-coupling detection and adjustment of adaptive response in noise-canceling in personal audio devices
WO2012075343A2 (en) 2010-12-03 2012-06-07 Cirrus Logic, Inc. Oversight control of an adaptive noise canceler in a personal audio device
US8848936B2 (en) 2011-06-03 2014-09-30 Cirrus Logic, Inc. Speaker damage prevention in adaptive noise-canceling personal audio devices
US9824677B2 (en) 2011-06-03 2017-11-21 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US9076431B2 (en) 2011-06-03 2015-07-07 Cirrus Logic, Inc. Filter architecture for an adaptive noise canceler in a personal audio device
US9318094B2 (en) 2011-06-03 2016-04-19 Cirrus Logic, Inc. Adaptive noise canceling architecture for a personal audio device
US8958571B2 (en) 2011-06-03 2015-02-17 Cirrus Logic, Inc. MIC covering detection in personal audio devices
US9214150B2 (en) 2011-06-03 2015-12-15 Cirrus Logic, Inc. Continuous adaptation of secondary path adaptive response in noise-canceling personal audio devices
US8948407B2 (en) 2011-06-03 2015-02-03 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US8909524B2 (en) 2011-06-07 2014-12-09 Analog Devices, Inc. Adaptive active noise canceling for handset
US9325821B1 (en) * 2011-09-30 2016-04-26 Cirrus Logic, Inc. Sidetone management in an adaptive noise canceling (ANC) system including secondary path modeling
US9142205B2 (en) 2012-04-26 2015-09-22 Cirrus Logic, Inc. Leakage-modeling adaptive noise canceling for earspeakers
US9014387B2 (en) * 2012-04-26 2015-04-21 Cirrus Logic, Inc. Coordinated control of adaptive noise cancellation (ANC) among earspeaker channels
US9123321B2 (en) 2012-05-10 2015-09-01 Cirrus Logic, Inc. Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system
US9318090B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system
US9082387B2 (en) 2012-05-10 2015-07-14 Cirrus Logic, Inc. Noise burst adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9076427B2 (en) 2012-05-10 2015-07-07 Cirrus Logic, Inc. Error-signal content controlled adaptation of secondary and leakage path models in noise-canceling personal audio devices
US9319781B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Frequency and direction-dependent ambient sound handling in personal audio devices having adaptive noise cancellation (ANC)
WO2013170018A1 (en) 2012-05-11 2013-11-14 3M Innovative Properties Company Bioacoustic sensor with noise vibration control
US9532139B1 (en) 2012-09-14 2016-12-27 Cirrus Logic, Inc. Dual-microphone frequency amplitude response self-calibration
US9107010B2 (en) 2013-02-08 2015-08-11 Cirrus Logic, Inc. Ambient noise root mean square (RMS) detector
US9369798B1 (en) 2013-03-12 2016-06-14 Cirrus Logic, Inc. Internal dynamic range control in an adaptive noise cancellation (ANC) system
US9106989B2 (en) 2013-03-13 2015-08-11 Cirrus Logic, Inc. Adaptive-noise canceling (ANC) effectiveness estimation and correction in a personal audio device
US9215749B2 (en) 2013-03-14 2015-12-15 Cirrus Logic, Inc. Reducing an acoustic intensity vector with adaptive noise cancellation with two error microphones
US9414150B2 (en) * 2013-03-14 2016-08-09 Cirrus Logic, Inc. Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device
US9502020B1 (en) 2013-03-15 2016-11-22 Cirrus Logic, Inc. Robust adaptive noise canceling (ANC) in a personal audio device
US9467776B2 (en) 2013-03-15 2016-10-11 Cirrus Logic, Inc. Monitoring of speaker impedance to detect pressure applied between mobile device and ear
US9208771B2 (en) 2013-03-15 2015-12-08 Cirrus Logic, Inc. Ambient noise-based adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9635480B2 (en) 2013-03-15 2017-04-25 Cirrus Logic, Inc. Speaker impedance monitoring
US10206032B2 (en) 2013-04-10 2019-02-12 Cirrus Logic, Inc. Systems and methods for multi-mode adaptive noise cancellation for audio headsets
US9066176B2 (en) 2013-04-15 2015-06-23 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation including dynamic bias of coefficients of an adaptive noise cancellation system
US9462376B2 (en) 2013-04-16 2016-10-04 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9460701B2 (en) 2013-04-17 2016-10-04 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by biasing anti-noise level
US9478210B2 (en) 2013-04-17 2016-10-25 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9578432B1 (en) 2013-04-24 2017-02-21 Cirrus Logic, Inc. Metric and tool to evaluate secondary path design in adaptive noise cancellation systems
US9264808B2 (en) 2013-06-14 2016-02-16 Cirrus Logic, Inc. Systems and methods for detection and cancellation of narrow-band noise
US9392364B1 (en) 2013-08-15 2016-07-12 Cirrus Logic, Inc. Virtual microphone for adaptive noise cancellation in personal audio devices
US9666176B2 (en) 2013-09-13 2017-05-30 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by adaptively shaping internal white noise to train a secondary path
US9620101B1 (en) 2013-10-08 2017-04-11 Cirrus Logic, Inc. Systems and methods for maintaining playback fidelity in an audio system with adaptive noise cancellation
US9704472B2 (en) 2013-12-10 2017-07-11 Cirrus Logic, Inc. Systems and methods for sharing secondary path information between audio channels in an adaptive noise cancellation system
US10219071B2 (en) 2013-12-10 2019-02-26 Cirrus Logic, Inc. Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation
US10382864B2 (en) 2013-12-10 2019-08-13 Cirrus Logic, Inc. Systems and methods for providing adaptive playback equalization in an audio device
US9369557B2 (en) 2014-03-05 2016-06-14 Cirrus Logic, Inc. Frequency-dependent sidetone calibration
US9479860B2 (en) 2014-03-07 2016-10-25 Cirrus Logic, Inc. Systems and methods for enhancing performance of audio transducer based on detection of transducer status
US9648410B1 (en) 2014-03-12 2017-05-09 Cirrus Logic, Inc. Control of audio output of headphone earbuds based on the environment around the headphone earbuds
US9319784B2 (en) 2014-04-14 2016-04-19 Cirrus Logic, Inc. Frequency-shaped noise-based adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9609416B2 (en) 2014-06-09 2017-03-28 Cirrus Logic, Inc. Headphone responsive to optical signaling
US10181315B2 (en) 2014-06-13 2019-01-15 Cirrus Logic, Inc. Systems and methods for selectively enabling and disabling adaptation of an adaptive noise cancellation system
US9478212B1 (en) 2014-09-03 2016-10-25 Cirrus Logic, Inc. Systems and methods for use of adaptive secondary path estimate to control equalization in an audio device
US9552805B2 (en) 2014-12-19 2017-01-24 Cirrus Logic, Inc. Systems and methods for performance and stability control for feedback adaptive noise cancellation
KR101699067B1 (ko) * 2015-05-29 2017-02-01 민훈 노이즈 제거 기능이 구비된 이어폰 장치 및 노이즈 제거 방법
JP6964581B2 (ja) 2015-08-20 2021-11-10 シーラス ロジック インターナショナル セミコンダクター リミテッド 固定応答フィルタによって部分的に提供されるフィードバック応答を有するフィードバック適応雑音消去（ａｎｃ）コントローラおよび方法
US9578415B1 (en) 2015-08-21 2017-02-21 Cirrus Logic, Inc. Hybrid adaptive noise cancellation system with filtered error microphone signal
EP3157000B1 (de) * 2015-10-16 2020-11-25 Harman Becker Automotive Systems GmbH Skalierbare rausch- und vibrations-erfassung
US10013966B2 (en) 2016-03-15 2018-07-03 Cirrus Logic, Inc. Systems and methods for adaptive active noise cancellation for multiple-driver personal audio device
US10720139B2 (en) * 2017-02-06 2020-07-21 Silencer Devices, LLC. Noise cancellation using segmented, frequency-dependent phase cancellation
US10580398B2 (en) * 2017-03-30 2020-03-03 Bose Corporation Parallel compensation in active noise reduction devices
US10614790B2 (en) 2017-03-30 2020-04-07 Bose Corporation Automatic gain control in an active noise reduction (ANR) signal flow path
US10553195B2 (en) 2017-03-30 2020-02-04 Bose Corporation Dynamic compensation in active noise reduction devices
US10276145B2 (en) * 2017-04-24 2019-04-30 Cirrus Logic, Inc. Frequency-domain adaptive noise cancellation system
US10565979B1 (en) * 2018-10-16 2020-02-18 Harman International Industries, Incorporated Concurrent noise cancelation systems with harmonic filtering
US10714116B2 (en) 2018-12-18 2020-07-14 Gm Cruise Holdings Llc Systems and methods for active noise cancellation for interior of autonomous vehicle
CN109994099A (zh) * 2019-03-18 2019-07-09 佛山市云米电器科技有限公司 一种卧室用主动降噪装置及具有该主动降噪装置的卧室
US11404040B1 (en) 2019-12-19 2022-08-02 Dialog Semiconductor B.V. Tools and methods for designing feedforward filters for use in active noise cancelling systems
CN111885459B (zh) * 2020-07-24 2021-12-03 歌尔科技有限公司 一种音频处理方法、音频处理装置、智能耳机
CN112185336A (zh) * 2020-09-28 2021-01-05 苏州臻迪智能科技有限公司 一种噪声消减方法、装置及设备
CN116324968B (zh) * 2020-10-08 2025-12-30 华为技术有限公司 主动降噪设备和方法
US11678116B1 (en) 2021-05-28 2023-06-13 Dialog Semiconductor B.V. Optimization of a hybrid active noise cancellation system
US12354581B2 (en) 2022-08-31 2025-07-08 Renesas Design Netherlands B.V. Method for automatically designing a feedforward filter
KR102823367B1 (ko) * 2022-09-16 2025-06-19 강원대학교산학협력단 스테레오 채널을 이용하는 능동 소음 제어 장치 및 그 방법
US12456447B2 (en) 2022-12-15 2025-10-28 Renesas Design Netherlands B.V. Tools and methods for designing filters for use in active noise cancelling systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689821A (en) * 1985-09-23 1987-08-25 Lockheed Corporation Active noise control system
EP0471290A2 (de) * 1990-08-16 1992-02-19 Hughes Aircraft Company Adaptiver aktiver Lärmdämpfer ohne Übungsmodus
GB2257327A (en) * 1991-07-05 1993-01-06 Honda Motor Co Ltd Active vibration control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2517150B2 (ja) * 1990-03-30 1996-07-24 松下電器産業株式会社 消音装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689821A (en) * 1985-09-23 1987-08-25 Lockheed Corporation Active noise control system
EP0471290A2 (de) * 1990-08-16 1992-02-19 Hughes Aircraft Company Adaptiver aktiver Lärmdämpfer ohne Übungsmodus
GB2257327A (en) * 1991-07-05 1993-01-06 Honda Motor Co Ltd Active vibration control system

Also Published As

Publication number Publication date
DE69430775T2 (de) 2002-10-10
US5425105A (en) 1995-06-13
EP0622779B1 (de) 2002-06-12
EP0622779A2 (de) 1994-11-02
CA2122108A1 (en) 1994-10-28
KR940025159A (ko) 1994-11-19
KR0164237B1 (ko) 1999-03-20
CA2122108C (en) 1998-01-06
DE69430775D1 (de) 2002-07-18
JP2889114B2 (ja) 1999-05-10
JPH0756583A (ja) 1995-03-03

Similar Documents

Publication Publication Date Title
EP0622779A3 (de) Aktiver Lärmdämpfer mit vielfachadaptivem Filter.
EP0609828A3 (de) Adaptiver, signalangepasster Filter.
EP0471290A3 (en) Active adaptive noise canceller without training mode
EP0465174A3 (en) Adaptive active noise cancellation apparatus
EP0604208A3 (de) Adaptiver Entzerrer.
EP0684708A4 (de) Adaptiver entzerrer.
EP0622778A3 (en) Non-integer sample delay active noise canceller.
GB9225212D0 (en) Adaptive noise cancellation device
AU4566696A (en) Noise canceler
EP0637141A3 (de) Unterdrückung von nahem Übersprechen.
EP0680154A3 (de) Interferenzunterdrückung mit Leistungsinvertierenden adaptiven Antennenanordnung und adaptiven Entzerrer nach dem Verfahren des kleinsten quadratischen Fehlers.
EP0700543A4 (de) Komplexes adaptives fir-filter
EP0572208A3 (de) Lärm-Kontroll-Gerät.
EP0628260A3 (de) Zigarettenfilter.
EP0661903A3 (de) Telefongerät mit Hintergrundgeräuschunterdrückungsfunktion.
AU7440191A (en) Noise suppression system
ZA966011B (en) Adaptive despreader
EP0681730A4 (de) Verminderung von übertragungsrauschen in kommunikationssystemen.
AP9600779A0 (en) Adaptive communication system
AU5389798A (en) Adaptive filter
GB2341067B (en) Adaptive dual filter echo cancellation
IL132034A0 (en) Combined parallel adaptive equalizer/echo canceller
EP0616314A3 (en) Active noise attenuating device of the adaptive control type.
EP0612057A3 (en) Active noise control systems.
EP0555786A3 (en) Active noise cancellation system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19960314

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RAYTHEON COMPANY

17Q First examination report despatched

Effective date: 19990611

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69430775

Country of ref document: DE

Date of ref document: 20020718

ET Fr: translation filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030313

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120421

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: OL SECURITY LIMITED LIABILITY COMPANY, US

Effective date: 20130327

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130326

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69430775

Country of ref document: DE

Representative=s name: BOSCH JEHLE PATENTANWALTSGESELLSCHAFT MBH, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130430

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69430775

Country of ref document: DE

Representative=s name: BOSCH JEHLE PATENTANWALTSGESELLSCHAFT MBH, DE

Effective date: 20130603

Ref country code: DE

Ref legal event code: R081

Ref document number: 69430775

Country of ref document: DE

Owner name: OL SECURITY LLC, US

Free format text: FORMER OWNER: RAYTHEON CO., EL SEGUNDO, US

Effective date: 20130603

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130417

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20130912 AND 20130918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130426

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69430775

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20140425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140429